Russia and Ukraine have agreed to a large prisoner exchange during U.S.-mediated talks. However, no major breakthroughs were announced in efforts to end the war that began nearly five years ago. The two-day session in Abu Dhabi was the first meeting in nine months. U.S. officials are determined to revive peace efforts, with envoys set to meet with the Russian and Ukrainian presidents. Fighting continues on the front line, with both countries using long-range missiles and drones. Ukrainian officials say three people were killed and 11 were injured after Russia launched a daytime attack on a market in the southern Odesa region.